5-(2,4-bis(benzyloxy)-5-isopropylphenyl)-N-ethyl-4-(N'-hydroxycarbamimidoyl)isoxazole-3-carboxamide 、
乙酰氧基乙酰氯 以to afford the intermediate compound (Step 1) (3-(5-(2,4-bis(benzyloxy)-5-isopropylphenyl)-3-(ethylcarbamoyl)isoxazol-4-yl)-1,2,4-oxadiazol-5-yl)methyl acetate (167 mg, 0.27 mmol) in a yield of 72%的产率得到(3-(5-(2,4-bis(benzyloxy)-5-isopropylphenyl)-3-(ethylcarbamoyl)isoxazol-4-yl)-1,2,4-oxadiazol-5-yl)methyl acetate